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Pressure sensing device for adjusting four-corner balance, circuit and electronic weighing apparatus

A sensing circuit and sensing device technology, applied in the field of pressure sensing devices, circuits and electronic weighing instruments, can solve the problems of large man-hours, increased overall cost, and low correction accuracy

Pending Publication Date: 2020-06-23
深圳芯易德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of mechanical correction requires experienced workers to spend a lot of man-hours, which increases the overall cost, and the correction accuracy is not high

Method used

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  • Pressure sensing device for adjusting four-corner balance, circuit and electronic weighing apparatus
  • Pressure sensing device for adjusting four-corner balance, circuit and electronic weighing apparatus
  • Pressure sensing device for adjusting four-corner balance, circuit and electronic weighing apparatus

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a pressure sensing device for adjusting four-corner balance, a circuit and an electronic weighing apparatus. The pressure sensing device for adjusting four-corner balance comprises an elastic part, first strain gauge sets and second strain gauge sets, wherein the elastic part is provided with a first surface and a second surface, and the first surface and the second surfaceare oppositely arranged; the number of the first strain gauge sets is two, and the two first strain gauge sets are oppositely arranged on the elastic part at intervals in a length direction of the elastic part and located on a central axis; each first strain gauge set is provided with two strain gauges which are arranged on the first surface and the second surface and correspond to each other inposition; the second strain gauge sets and one first strain gauge set are adjacently arranged side by side in a width direction of the elastic part; and each second strain gauge set is provided with two strain gauges which are arranged on the first surface and the second surface and correspond to each other in position. According to the technical scheme, measurement precision of a pressure sensingdevice in the electronic weighing apparatus is improved.

Description

technical field [0001] The invention relates to the technical field of electronic weighing instruments, in particular to a pressure sensing device for adjusting four-corner balance, a circuit and an electronic weighing instrument. Background technique [0002] Electronic scales such as electronic pricing scales and platform scales generally use a load-bearing tray to transmit the pressure of the object to be weighed to a pressure sensor below it at a single point, and measure the weight of the object through the elastic deformation of the pressure sensor. However, since the sensor itself and the scale bracket on which the sensor is installed are not strictly symmetrical, there will be deviations in the output signal of the sensor when the same weight is placed on the center and four corners of the load-bearing tray, resulting in inconsistent weight readings of the weighed object. [0003] At present, to correct the deviation of this kind of weighing instrument is to correct ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/13G01G21/00
CPCG01G3/13G01G21/00
Inventor 陈征宇
Owner 深圳芯易德科技有限公司
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